Cellar-drain.



UNITED STATES" PATENT OFEIcE.

.GEORGE o. MILLER, OF NORTH TONAWANDA, NEW YORK.

CELLAR-DRAIN.

SPECIFICATION forming part of Letters Patent No. 628,207, dated July 4, 1899. Application filed February 5, 1898.: Serial No. 669,189. (No model.)

To a whom it may concern.- 7

Be it known that l, GEORGE O. MILLER, a citizen of the United States, residing at North Tonawanda, in the .county of Niagara and State of New York, have invented certain new and useful Improvements in Cellar-Drains, of which the following is a specification.

'My invention relates to an improved drain for cellars, slop-sinks, &c.; and the principal object is to simplify and cheapen the construction and also provide a deeper water seal having a floating ball beneath it to prevent the breaking of the water seal by the upward pressure of the water or gas.

It also relates to certain novel details of construction, all of which will be fully and clearly hereinafter described and claimed, reference being had to the accompanying drawings, in Wl1lOl1- Figure 1 represents a vertical central section on or about line a a, Fig. 4. Fig. 2 represents a detached side elevation ofthe re movable trap-cover. Fig. 3 represents a detached side elevation of the trap-pipe. Fig. 4 represents a top view of the complete device as shown in Fig. 1. Fig. 5 represents a side elevation showing a modified form of the lower trap or valve holding pipe.

Referring to the drawings for the details of my invention, in which like numerals represent like parts, 1 designates the receiver or basin, which is preferably constructed of cast iron and is provided with sloping sides having short vertical upper sides and a horizontal bottom, which is provided with a circular central opening 2, the'purpose of which will appear farther on. The basin can be constructed in the substantially square form shown in the drawings, or it may be formed in a circular or any other suitable shape, or the general arrangement of the sides and bottom may be changed. The basin is also pro vided with a surrounding flange 3; which extends substantially horizontally outward from at or about the junction of the sloping sides and the vertical sides, substantially as shown in Fig. 1. The bell 1 is provided with a notched lower edge and rests and is supported upon the ledges 5, extending from the interior of the basin. The pipe or tube 6 is also provided with a surrounding flange 7, which extends outwardly in asubstantially horizon- ;tal direction therefrom. The hollow shell or trap portion 8 is provided with a chamber 9, in which a light ball-float. 10, of rubber or othersuitable substance, is in'closed, and the lowerend of the pipe 6 extends into said chamber sufficiently to form a seat for the ball, and therefore provide a trap-to prevent the upward movement of the water or gas. The end 11 of the shell or trap portion may extend horizontally, as shown in Fig. 1, vertically downward, as shown in Fig. 5, or in any other direction desired, .and it is preferably provided with a surrounding bead or flange 12. I

In some instances it may prove advisable to dispense with the shell or trap portion 8 and the ball-float l0 and connect the pipe 6 itself to the outer pipe. I then preferably provide the lower end of the pipe 6 with a surrounding bead and calk it within the upper end of the outlet-pipe.

The basin, the pipe 6, and the trap portion are all detachably secured together and preferably by means of screws, substantially as shown in Fig. 1. Owing to this the drain can be easily dismounted for cleaning purposes, or the trap end can be easily calked into the outlet-pipe by the usual calking-tools before the several portions are united, thus providing room and allowing the tools to be easily operated. The heavier portions of the dirt or refuse will collect in the depression between the sides of the basin and the pipe 6 and can easily be removed therefrom upon the removal of the bell.

The upper end of the pipe 6 extends up into the bell far enough to provide a water seal sufficiently deep for'all practical pur poses, and its lower end extends below the lowest interior point of the pipe extension of the shell or trap portion, thus providing'a second lower independent water seal and means whereby the ball will be held against the lower end of the pipe 6 to close the open ing in the same, even though the pipe extension be empty.

Through long disuse the water constituting the water seal may dry out, destroying the seal, in which case the floating ball will still continue to act to prevent the egress of the foul air or gas, as the water supporting the ball cannot dry out or vaporize very well owing to its exclusion from the exterior atl a notched lower edge supported above said mosphere; but as it will in course of time disappear it is best to remove the bell now and then to ascertain the condition of the water seal.

Myimproved device is preferably placed in the floor of the cellar and flush with the same-,the surrounding flange providing means 4 particles of matter being unable to pass through the openings are held between the exterior of the bell and the interior of the basin and are easily removed therefrom, together with the particles collected between the exterior of the upper portion of the pipe 6 and the interior of the basin upon the removal of the bell.

It will thus be seen that my improved device is provided with an upper water seal and a lower water seal, each acting independent of the other,and also with a floating-ball seal, thus affording three different seals to prevent the egress of the noxious and unhealthy sewer-gases.

I claim as my invention- 1. A drain comprising a basin provided with a bottom opening, a bell provided with I l r l l l I l opening, a shell or trap portion having an outlet-pipc, a pipe having its upper end projecting through the opening in the basin and into the bell above the notched edge thereof, and its lower end projecting into the shell or trap portion below the outlet-pipe, and a floating ball supported against the lower end of the pipe, whereby a floating-ball seal, an upper. water seal-and a lower water seal independent of each other'are formed, asset forth.

2. A drain comprising a trap portion having a pipe portion extending horizontally from one side of the upper portion, a basin provided with an internally-projecting ledge and a bottom opening, a substantially perpendicular pipe having, its upper end extending through said opening, and its lower end extending into the trap below its horizontal pipe portion to form a lower water seal, and provided with an intermediate peripheral enlargement or flange interposed and supported between the trap and basin, a bell provided with a notched lower edge supported over the upper end of said pipe upon the ledge of the basin with its notched lower edge below the top of said pipe to form an upper water seal, a floating hall in the trap adapted to be forced upward by the water in the lower water seal to normally close the lower end of the pipe and screws passing through the basin, pipe and trap, for detachably securing said basin, pipe and trap together, as set forth.

GEO. O. MILLER.

Witnesses:

A. J. SANGSTER, G. A. NEUBAUER. 

